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2020 Workshop on Fault Detection and Tolerance in Cryptography (FDTC)最新文献

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SPFA: SFA on Multiple Persistent Faults SPFA: SFA on Multiple Persistent fault
2020 Workshop on Fault Detection and Tolerance in Cryptography (FDTC) Pub Date : 2020-09-01 DOI: 10.1109/FDTC51366.2020.00014
Susanne Engels, Falk Schellenberg, C. Paar
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引用次数: 6
Trouble at the CSIDH: Protecting CSIDH with Dummy-Operations Against Fault Injection Attacks CSIDH的麻烦:用虚拟操作保护CSIDH免受故障注入攻击
2020 Workshop on Fault Detection and Tolerance in Cryptography (FDTC) Pub Date : 2020-09-01 DOI: 10.1109/FDTC51366.2020.00015
Fabio Campos, Matthias J. Kannwischer, Michael Meyer, Hiroshi Onuki, Marc Stöttinger
{"title":"Trouble at the CSIDH: Protecting CSIDH with Dummy-Operations Against Fault Injection Attacks","authors":"Fabio Campos, Matthias J. Kannwischer, Michael Meyer, Hiroshi Onuki, Marc Stöttinger","doi":"10.1109/FDTC51366.2020.00015","DOIUrl":"https://doi.org/10.1109/FDTC51366.2020.00015","url":null,"abstract":"The isogeny-based scheme CSIDH is a promising candidate for quantum-resistant static-static key exchanges with very small public keys, but is inherently difficult to implement in constant time. In the current literature, there are two directions for constant-time implementations: algorithms containing dummy computations and dummy-free algorithms. While the dummy-free implementations come with a 2x slowdown, they offer by design more resistance against fault attacks. In this work, we evaluate how practical fault injection attacks are on the constant-time implementations containing dummy calculations. We present three different fault attacker models. We evaluate our fault models both in simulations and in practical attacks. We then present novel countermeasures to protect the dummy isogeny computations against fault injections. The implemented countermeasures result in an overhead of 7% on the Cortex-M4 target, falling well short of the 2x slowdown for dummy-less variants.","PeriodicalId":168420,"journal":{"name":"2020 Workshop on Fault Detection and Tolerance in Cryptography (FDTC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126309328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
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